If you want to do it right it must be supported.
# Cable Support
* Pathways will be constructed from appropriate cable supports such as J-hooks, cable ladders, trays/raceways, conduits, etc. Such supports will be attached independently to the building structure and shall not be attached to the suspended ceiling grid supports. The added weight to the ceiling grid system can cause distortion in the grid system.
* Cable ladders or trays/raceways shall be used for main runs whenever practical.
* The minimum cable support shall be J-hooks. These are quite acceptable for most individual cables entering rooms.
* Cable support shall be at a maximum of 5 ft. intervals.
* Cable ties shall not be cinched so tightly that it deforms the cable jacket.
* Cable ties shall be trimmed of any excess length. Velcro cable ties may be used in non-weight-bearing locations.
# When allowed by cable standard, cable will have a service loop left in the BDF/IDF and at the outlet end to allow for moving or re-termination. Service loops must conform to specifications to include total length and bend radii.
# If building is renovated or rewired, abandoned cable shall be removed from the building in accordance with National Electric Code, once it is no longer in service. Unused, un-terminated cable is only allowed if there is a planned purpose for the cable.